Shuttle-lock for looms.



PATBNTED JUNE 1904.

J. NORTHROP. l SHUTTLE LOCK FOR LOOMS.

APPLICATION FILED IAB. 7. 1904.

N0 MODEL.

UNITED STATES Patented June *7, 1904'.

PAT-ENT OFFICE.

DRAPER COMPANY, OF HOPEDA TION OFv MAINE.

LE, MASSACHUSETTS, A CORPORA- SHUTTLE-LOCK FOR LOONIS'.

SPECIFICATION forming' part of Letters Patent No. 761,936, dated June '7, 1904. Application mediana 7,1904. serialNo. 196,802. (Noinoei.)

To all whom t 711,114/ concern,.-

Be it known that 1, JONAS NoR'rI-Inor, a subject of the King of Great Britain, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Shuttle-Locks for Looms, of which the following description, in connection with the accompanying drawings,'is a specification, like letters on the drawings representing like parts.

This invention has for itsobject-the production of simple, direct-acting, and positive means to cheek the movement of a loom-shuttle as it enters the shuttle-box and to lock the shuttle from rebound.

As will hereinafter appear, the device possesses great simplicity combined with durability, the constructionbeing such that it can be as readily applied to looms now in use as to those in course of construction.

The various novel features of my invention will befully described in the subjoined speciiication and particularly pointed out in the following claims. j

Figure 1 is a top or plan view of one end of a loom-lay with a shuttle-box thereon and with one embodiment vof my invention applied thereto, the shuttle-box being empty and the cover-plate thereof being broken out. 2 is a similar view, but showing the shuttle boxed and locked therein. Fig. 3 is a rear elevation of the apparatus illustrated in Figs. 1 and 2; and Fig. 4 is a sectional detail on the line 4- 4, Fig. 3, of the adjustable fulcrum for the binder-actuator, to be described.

The lay 1, the shuttle-box thereon, comprising aiixed front wall 2, cover-plate 3, and

' back wall4, thepicker 5, whose staff is adapted to reciprocate inthe longitudinal slot 6 in the bottom of the shuttle-box, the protector rockshaft 7, its controlling-spring 8, Fig. 3, and upturned binder-finger 9 may be and are all of well-known construction.

While I have herein shown what is known technically as a back-binder, it will be manifest hereinafter that my inventionV is equally applicable to front or back binder looms, as the case may be.

Fig.-

The binder 10, having a swell 11 to receive the impact of the incoming shuttle and fulcrumed at its outer end onvthe stud 12, is substantially ofusual construction, its inner end being extended at 13 to be engaged by the binder-finger 9 and also to rest against the box-wall 4 when the box is empty.

In accordance with my present invention 1 have provided a binder-actuator constructed d good bearing-surface when brought against y the outer face of the binder extension 13. The opposite or outer end of said actuator is dropped down at 18, Fig. 3, to thelevel of the lay Vvand then continued forward at 19, passing through a recess 2O made in the under face of the binder. The part 19 is upturned to present a slightly-convexedor cam portion 21, forming the impact portion of the actuator and projecting into the path of movement of the shoulder of the shuttle S when the shuttle-box is empty. f

Referring to Figs. 1 and 2, it will be seen that the front face of the binder is cut out at 22 to fully clearsuch impact portion'21 of the actuator. The outer end of the latterhas a bent lug 23, (see Fig. 3,) which depends behind the lay, acting as a stop to limit inward movement of the impact portion 21, and saidr e than the distance from the stud to the enlargement 17 to thereby increase the leverage when the shuttle operates the actuator. When the shuttle enters the box, its shoulder strikes the swell 11 and throws the binder 10 outward, operating the protector mechanism in usual manner and to some extent checking the movement of the shuttle. The latter, however, continues onward, and its shoulder engages the impact portion 21 and forces the outer end of the actuator out, while simultaneously the inner end thereof engages the free end of and presses the binder inward against the shuttle, as shown in Fig. 2.

The force of the blow of the shuttle upon the actuator will depend upon the weight and speed of the shuttle, and the action of the binder upon the shuttle, due to the operation of the actuator, will correspond to the shuttle speed and weight.

It is to be observed that the actuator, and through it the binder, is operated by direct engagement with the shuttle, so that the force engendered by such impact of the shuttle is transmitted directly and positively through the actuator to the binder. Such binding and locking action is effected wholly independent of the picker, which swings back and forth without acting vupon the binder-actuator` While the shuttle is boxed, it continues to act through the actuator to maintain the locking action of the binder; but the instant the shuttle is picked it releases the actuator and the binder-pressure is relieved.

I prefer to mount the actuator-fulcrum 16 adjustably on the lay in order that wear may be taken up and so that adjustment of the parts can be readily effected when required. To this end a bracket 24 is secured to the back of the lay by a bolt 25, said bracket having at its top a rearward extension or shelf 26, (see Fig. 4,) provided with a slot 27, Fig. 4, through which the stud 16 is extended. A sleeve or bushing 28 surrounds the stud between the shelf and a nut 29, on the upper end of the stud, clamping the latter in position on the shelf, the hub l5 of the binder-actuator rocking on the sleeve, and, as shown in Fig. 4, the latter has an annular shoulder 30 at its lower end serving as a seat for the hub. A washer 8l is preferably interposed between the nut 29 and the upper end of the sleeve.

In order to effect a line adjustment of the fulcrum-stud and also to prevent it from accidentally working to the rear, I have inserted an adjusting-screw 32 in the shelf 26 to bear upon the back of the stud, said screw being provided with a check-nut 33', as shown.

he bracket 24 is shown as having toes 24X on its lower end to extend beneath the lay and assist in holding said bracket firmly in position. By loosening the bolt 25 the bracket can be moved longitudinally on the lay, the bracket having an elongated slot 34 for the purpose, and adjustment of the fulerum-stud 16 transversely of the lay is e if ected by loosening the nut 2S) and setting up or slacking oil the adj Listing-screw 32.

The actuator can readily be applied to a loom by means of the bracket described, it then being necessary to merely eut out and recess the usual binder for the accommodation of the outer end of the actuator and its impact portion.

Havingfully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a loom, a lay, a. shuttle-lmx thereon, having a fixed wall and an opposite, laterallyswinging binder fulcrumed at its outer end, and a bilulcr-actuator fulcrumed outside the binder and having its outer end in the path of the incoming shuttle, the inner end ofthe aetuator acting directly upon the free end of and forcing the binder inward against the shuttle when the latter engages the outer end of said actuator.

2. In a loom, a shuttle-bo.\,a lateral ly-swinging binder fulcrumed at the outer end, a rocking actuator having one end adapted to engage and positively move the binder inward, and an impact extension on the other end of the actuator to be engaged by the iileoming shuttle, the actuator being rocked by or through such engagement to force the binder against the shuttle.

3. In a loom, alay, a shuttle-box thereon, a laterally-movable binder fulcrumed at its ou ter end on the lay, a binder-actuator having one end in the path of and to be engaged and moved outward by the incoming shuttle, the other end of said actuator cm'perating with and to move the binder inward against the shuttle, and a fulerum for the said actuator, adjustable on the lay.

4. In a loom, a lay, a shuttle-box thereon, a laterally-swinging binder, an actuator therefor having one end in the path of and to be moved outward by impact of theI incoming shuttle, an adjustable fulcrum for said actuator, and a retracting-spring to position said actuator when the shuttle-box is empty, operation of the actuator by the shuttle subsequent to contact of the latter with the binder causing said binder to move inward against the shuttle.

In testimony whereof l have signed my name to this speci lication in the presence of two sub seribing witnesses.

JONAS NOR'VII'I'HOP.

Vitnesses:

GEORGE Oris DnArnn, EDWARD F. ALLEN. 

